Silk-thread-finishing machine.



E. POHL.

SILK THREAD FINISHING MAGHINE.

APPLICATION FILED NOV. 13 1908.

2 SHEETS-SHEET 1.

R/ WWW W e 0 Y 5 Patent-e01 0011. 12, 1909.

I WITNESSES r, n

SILK THREAD FINISHING MACHINE.

APPLICATION FILED NOV. 13, 1908.

w Gd 06 Q MWG M W JSHIIIIIP Patented Oct. 12,

writ:

IAllfllfllflll/IAIIQ J WITNESSES:

UNITED snares PAT EDWARD POHL, OF NEW YORK, N. Y.

SILK-THREAD-FINISHIIQ'G' MACHINE.

Specification of Letters Patent.

Application filed November 13, 1.908.

Serial no. 282,523.

mg machines, and particularly to machines for lustering and finishing silk threads by the application of a solution thereto, and in al o drying and ironing the same.

L1 this class of machine it is common to pass the threads through a bath containing a finishing solution, and to then convey the threads over a suitable heated contact surface, whereby they are dried and ironed. Great trouble has been experienced in the past, ill the use of this class of apparatus, in the deposit of solution, which has been carried )ver by the threads, upon the sur face of the contact table. Furthermore,

a there is a tendency to the production of flattened threads and threads which are olished or ironed only part of the way aroun This trouble has largely arisen from the fact that the threads are usually conveyed directly from the' hath over the table so that they engage the table while thoroughly wet. To overcome this ditlicultyg'l have attempted in the past to pass the threads initially through a drying chamber so as to partially dry them before they reach the table, but in order that this may be effective it is necessary either to pass them through a prohibitive length of chamber or else to run them so slowly, as to render the operation of the apparatus too expensive to be practical.

In my present apparatus I convey the threads from the bath over a heated contact member, whereby I remove the surplus moisture therefrom without tending'to dry or iron them to any degree ;from this point I conthey will be dry enough .to prevent the threads being flattened in the process of drawin them across the ironic table so that they will be polished evenly thereby and retained in their round condition. I find that if the threads are not flattened the slight variation in tension thereupon tends to cause the threads to roll or twist more or less upon the ironing table, whereby they will be polished substantially equally all around. On' the contrary, if they are thoroughly wet or moist when they reach the approach end of the table they become flattened and thereafter travel upon the table without this twisting or rolling movement, whereby one side only is ironed and polished. I preferably provide the member which is employed for initially removing the surplus moisture, with several contact surfaces,

whereby the same may be turned from time to time so as to present new surfaces for contact with the threads, leaving the surfaces formerly used free to be cleaned. By this means I am enabled to run the machine continuously without stopping it for cleaning purposes.

I have found that a machine of this character can be run at a higher speed than has been possible heretofore, while the threads receive a better and evener polish and are more completely finished and lustcred.

In order that my invention may be fully understood, I will. now proceed to describe an apparatus constituting an embodiment of the same, having reference to the accompanying drawings illustrating the same, and

will then point out the novel features in claims.

In the drawings: Figure 1 is a top view of the apparatus; Fig. 2 is a view in longitudinal vertical section therethrough, and Fig, 3 is a view in transverse section upon the line 8-3 of Fig. 2. y

The apparatus comprises a bath 10, suitably supported upon a framework 11, a heated contact member 12 revolubly supported by means of arms 13 carried by the said framework 11, an evaporating chamber 14, and an ironing table 15 whose upper surface constitutes the main heated contact surface for the threads. A suitable system of heating pipes 16 arranged to receive steam, hot water, or the like, is provided forthe purpose of heating the ironing table, the contact member 12, and the evaporating Patented Oct. 12, 1909.

chamber let. The heated contact member '12 is preferably polygonal in crosssection, being here shown as of square form, whereby it is provided 'with four similar surfaces which may be employed for contact with th threads. This member is held statiomiiy during the normal operation of the machine and may be given a ,quarter turn from time to time in order to expose a fresh surface for engagement with the threads and to tree the surface formerly used, whereby it may be readily cleaned. l' haye shovm the cvaporating chamber as beirne l'ormed partly by a depression 17 in the heated Contact table and partly by inclosing covers 18, two of which are shown as provided, the said covers being hinged along the center line of the machine as at 1t), whereby they may be litted for the purpose of obtaining access to the interior of the chamber ]+land rot urncol into place again when the machine is in normal operation.

In operation sill; threads are introduced into the bath l0 and l'rom thence are carried over the heated contact member 19. The function of this heated contact member 12 is to remove the surplus material so that after the threads pass therefrom they carry only. the quantity of finishing, material which it is desirable they shall permanently retain. Furthermore, though the threads are in no sense ironed by their contact with the member 12, they will be partially dried in the sense that practically all of the sur plus moistme will be removed; thereafter the threads will enter and pass through a chamber 14:. In their passage through this chamberthey will be considerably dried, so

' that when they finally reach the heated contact'surface of the table 15 the finishingimatorial will be so far dry as to prevent there being any danger of any part of it being deposited upon the table, or of the'threads be ing flattened by their engagement with the table. After reaching this point they are drawn over the table and thereby ironed and,

finished, the said threads being taken up by suitable winding mechanism at some point beyond the end of the contact table 15, as will be well understood.

What i claim is:

1. in apparatus for finishing and lustering sill; threads, the combination with means for ap iilyingr a finishing solution theirto, ot a heated contact member over which the threads are arranged to be drawn for the PllipOSU of removing superfinous'mw' terial tlHl'GfJUDI. an evaporating chamber through which the threads are then-ar ranged to pass, and an ironing table provided with a heated contact surface over which the threads are arranged to be finally (1a rried for the purpose of heating and ironing them.

A machine of the class described comprising a bath for containing finishing solution, an ironing table having aheated contact surface for receiving the threads, an evaporating chamber arranged between the bath and the heated contact surface of the ironing table, and a contact member disposed between the bath and the evaporating chamber for removing the s rplus moisture from the threads.

3. Apparatus of the class describedpro vided with a heated contact. table having a reressed portion at its approach end, and covers arranged above the'reccssed portion but out. of line therewith, whereby a chamber is inclosed through which the threads are arranged to pass prior to reaching the contact surface oi the ironing table.

4. Apparatus of the-class described, com'- prising an ironing table having a recessed portion at the. approach-end thereof, and hinged covers arranged above the said recesses to form an evaporating chamber through which the threads are arranged to, pass, the said 'troversbeing movable upon" their hinges, whereby access may be had to the interior of the chamber so inclosed.

EDWARD POHL. 1

\Yitnesses:

D. lIowAnn-HAYwoom/ Ii ram); S. ANDREWS, Jr. 

